__builtin_mul_overflow  153 lib/intprops-internal.h #define _GL_INT_MULTIPLY_WRAPV(a, b, r) __builtin_mul_overflow (a, b, r)
__builtin_mul_overflow  159 lib/intprops-internal.h          ? ((void) __builtin_mul_overflow (a, b, r), 1)                                            \
__builtin_mul_overflow  160 lib/intprops-internal.h          : __builtin_mul_overflow (a, b, r))